Fruit-jar cover.



Patented oct. 3|, i899.

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UNITED STATES- PATENT Fries.

WILLIAM I. SIHLER, OF DECORAH, IOWA.

FRUIT-JAR COVER.

SPECIFICATION forming part 0f Letters Patent No. 635,874, dated. lOctober. 31, 1899.

Application tiled October 17, 1898. Serial No. 693.787. (No model.)

[lb all whom t may concern.-

Be it known that I, WILLIAM P. SIHLER, a citizen of the United States, residing at Decorah, in the countyof Winneshiek and State of Iowa, have invented a new and useful Fruit-J ar Cover, of which the following is a specification.

My invention relates to fruit-jars, and particularly to fruit-jar covers, the object in View being to provide a device of this class adapted for excluding not only air, but germs, such as bacteria, the construction being such as to provide for applying and removing the lid or cover with facility.

Further objects and advantages of this invention appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure l is a side view, partlyin section,of a portion of afruit-jar provided with a closure constructed in accordance with my invention. Fig. 2 is a detail view of the packing-ring detached.

Similar numerals of reference indicate corresponding parts in both figures of the drawings.

The receptacle l, which may consist of a jar or any analogous device, is provided with an eXteriOrly-threaded neck portion 2, having a slight inward oblique direction and terminating in a horizontal inturned lip 3 to support a cap 4, which in practice may be constructed of glass, porcelain, or other analogous material, said cap being held in place by means of a lid or cover 5, which is flanged to it exteriorly upon the threaded neck portion of the receptacle and which is interiorly threaded, as in the ordinary practice, to e11- gage said neck portion. The cap .lis preferably provided with a central downward eX- tension or core 4a, which fits within the space encircled by the lip 3 of the receptacle, and in the side of this extension or core is formed an annular channel 6, which combines with the under surface of the body portion of the cap to form a seat for a packing-ring 7 of cotton, paraflin, or other compressible material. The flange S, formingrthe lower Wall of the channel 6, is preferably arranged at its periphery close to the inner edge of the lip 3, and when the cap is in place upon the receptacle the upper surface of this flange 8 is approximately flush with the upper surface of the lip 3, whereby the packing-ring '7 bears at its lower side upon the upper surface of the lip 3 and the wall 8, and thereby breaks the joint between the cap and the lip, while the upper wall of the channel 6 and the under surface of the body portion of the cap bear upon the upper surface of the packingring, whereby when thelid orcover is screwed to place said packing-ring is compressed between the opposing surfaces of the cap and the lip 3. Also the upper and lower surfaces of the packing-ring have an interlocking and break-joint engagement with the opposing surfaces of the receptacle and the cap, said cap preferably having a depending rib 9, which fits in an annular groove in the upper surface of the packing-ring, and the upper surface of the lip having an annular groove 10, into which fits a depending rib ll on the under surface of said packing-ring. This interlocking engagement of the surfaces of the packing-ring and the receptacle and cap prevents the ingress of germs, particularly when the packing-ring is constructed of cotton, as will be preferable in connection with fruitjars. An ordinary rubber ring 12 may be arranged upon the shoulder of the receptacle beneath the lower edge of the lid or cover to receive the pressure of the latterl as it is screwed to place, an important function of such rubber ring or gasket being to frictionally hold the lid or cover from accidental loosening or unthreading.

The upper part of the cap 4 projects outwardly a considerable distance beyond the flange 8 at the lower portion of the core 4: of said cap. The peripheral edge of the upper portion of the cap has a slight inward bevel, and when the cap is applied the said peripheral edge is in oblique alinement with the outer surface of the neck portion 2. By having the upper portion of the cap lfproject beyond the ange 8, as specified, an overhanging or overprojecting flange is provided which completely covers the upper portion of the neck 2 and the lip 3. By this means the interposed packing-ring is more firmly held in fixed relation when the parts of the cover and the neck, including the lip 3, are assembled. By having the periphery of the upper portion of the cap 4E arranged at an inward bevel and IOO in alinement with the outer screw-threaded surface of the neck 2 the lid or cover 5 may be more readily applied, and presenting an oblique surface to the outer edge ofthe packing-ring will tend to gradually force the latter irmly into the channel 6.

In addition to this function in connection with fruitjars and similar receptacles the cover embodying my invention is adapted for use upon jars such as those used in museums for containing specimens or curios in alcohol or other preserving fluid.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having described my invention, what I claim isl. The combination of a receptacle having a neck with a slightinward oblique ded ection and terminating in a horizontal inturned lip, the outer surface of the neck being screwthreaded and the lip having an annular groove in its upper surface and surrounding at its inner termination a central circular space, a cap provided with an upper outwardly-extending flange having a beveled periphery adapted to aline with the outer surface of the neck and formed with an under circumferential bead to be disposed over the circumferential groove in the lip of the neck, said cap having also a lower iange forming the lower wall of a channel of which the upper outwardly-projecting portion or fian ge of the cap in part provides the upper Wall, a packingring fitted on the upper portion of the neck and lip and extending into the channel of the cap being held locked through the medium of the bead of the latter and the groove of the lip, and a lid or cover removably fitted over the cap and neck and conforming to the 0bliquity of the latter.

2. The combination of a receptacle having at its mouth an inturned lip disposed horizontally and surrounding a central open space, a cap for closing the mouth of the receptacle and having a central pendent core with a lower flange above which a channel is formed limited by an upper outwardly-projecting portion or ange which extends over the lip and upper portion of the mouth of the receptacle, the vflange on the pendent core registering with the inner termination of the lip, an annular packing-ring disposed horizontally and Seated in the channel formed in the cap and lying across the joint between the lower flange of said cap and the inner termination of the lip, the lower part of said packing-ring being exteriorly exposed, and a lid or cover removably applied to the cap and the mouth of the receptacle.

In testimony' that I claim the foregoing as my own I have hereto aiixed my signature inr the presence of two Witnesses.

VILLIAM I. SIHLER.

Witnesses:

O. C. JOHNSON, A. L. HAAKENsoN. 

